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Towards the creation of a wine quality prediction index: Correlation of chardonnay juice and wine compositions from different regions and quality levels
journal contribution
posted on 2018-07-18, 00:00 authored by JM Gambetta, Daniel CozzolinoDaniel Cozzolino, SEP Bastian, DW JefferyWine quality depends upon the composition of the
grapes used in its production, which in turn depends on the
weather and soil of the growing region together with viticultural
practices. Region is used by many winemakers as a
proxy for quality but objective quality measures are lacking.
This study examined the compositional aspects of
Chardonnay wines produced with berries from different regions.
Through descriptive analysis, distinct sensory profiles
were recognised for three diverse regions in South Australia
(Adelaide Hills, Eden Valley, Riverland), which helped to pinpoint
compounds relating to higher- and lower-quality
Chardonnay wines. Correlations between the content of elements,
fatty acids, free volatiles and conjugated glycosides in
berries from different quality levels, and the composition of
their corresponding wines, were investigated. Higher berry
concentrations of linalool, (E)-linalool oxide, (Z)-3-hexen-1-
ol, decanoic acid, vitispirane, Cu, Zn, and behenic acid, and
lower °Brix and pH levels were related to higher quality wines.
Funding
Other
History
Volume
9Issue
10Start Page
2842End Page
2855Number of Pages
14eISSN
1936-976XISSN
1936-9751Publisher
Springer New York LLCPublisher DOI
Peer Reviewed
- Yes
Open Access
- No
External Author Affiliations
University of AdelaideAuthor Research Institute
- Institute for Future Farming Systems
Era Eligible
- Yes